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When access has been granted by the 300RC, the green
ACCESS LED will light and the caller will hear the a rising
sequence of three tones (Doodle-eep). This is the command prompt
which signifies that a command may be entered. If the access code
feature has been disabled as described above, the green ACCESS
LED will light and the command prompt will be heard as soon as
the call is answered.
If no commands are detected for 10 minutes, the 300RC will
hang up. This prevents some unforeseen condition, such as a
wrong number, from indefinitely causing an off-hook condition.
The 300RC can be caused to unconditionally hang up with the
command * # *
All the three - tone command prompts may be disabled or re-
enabled by pushing the * button four times. This feature allows
slightly faster actuation of the relays. The prompts are automati-
cally enabled each time the 300RC is called. A new command
should not be entered before the response tones are over.
J.
CONTROLLING THE RELAYS.
After the command prompt, pushing a number key on the
phone (0 - 9) will turn the corresponding relay on for as long as the
key is held down. If the unit is in the "interlock mode", a momen-
tary key press will latch the selected relay on and turn all others
off.
To latch a relay on, simply push the # key followed by the
relay number. To turn a relay off, push the # key twice followed by
the relay number.
Pressing the # key 3 times will turn all relays off.
If you wish to terminate a relay command before it is
completed, press the * key.
K.
POLLING THE RELAY STATUS.
To find out, or "poll", the current state of any relay, push the *
key three times followed by the relay number. The 300RC will
respond with a single low-pitched tone (booop) if the relay is off, or
two short high-pitched tones (beepbeep) if the relay is on. Note
that if the power has failed since the 300RC was last called, the
state of the relays may be the same as previously set (see "SET-
TING THE OTHER SWITCHES", above), but the state of the
relays cannot be determined by polling. In this case, instead of the
normal tones, the 300RC will give an error tone, a low-pitched
pulsating tone. Once another relay command is received, that
relay's state will once again be known and may be polled.
L.
POLLING THE STATUS OF THE INPUTS.
To determine the state of the 10 input circuits, press the * key
followed by the channel number. Assuming that external switches
are connected to the input terminals, the status tone will be a
"booop" if the switch is off, or the beepbeep if the switch is on .
Note that "on" would correspond to a low logic level, since one side
of the switch circuit is ground.
To find out if the status of any input has changed since the
300RC was call last, press the * key twice followed by the channel
number. If the channel has changed, at least once, the "on" tone
(beepbeep) will be heard. If not, the "off" tone (booop) will be heard.
M.
POWER-FAIL STATUS.
When the 300RC answers a call, and before access is granted,
a rapid series of alternating high and low pitched tones will be
heard if the power has failed since the last call was made. This is
an indication that the unit is not able to be polled for the relay
status, and also that it is not known whether any of the logic
inputs have changed state since last polled.
N.
LOCAL OPERATION.
With the 300RC connected to the phone line, you might wish
to test the unit without calling it from another phone line. If there
is a phone connected to the same line as the 300RC, call any
number, preferably one which will be answered by someone who
can put your call on hold while you test the unit. Or, if you call
your own number, you will receive a busy signal. Then hold the
LOCAL button down, on the 300RC, until the line is answered, as
indicated by the LINE light. You can then proceed to use the
phone to test the functions of the 300RC, even though you will still
hear the busy signal in the background.
O.
RESET BUTTON.
If a power transient or some other unusual condition causes
the 300RC to lock up or otherwise behave incorrectly, pushing the
RESET button will completely clear the unit to its initial power-
up state.
P.
MAINTENANCE.
SAFETY MESSAGE
Listed below are some important safety instructions and
precautions you should follow:
•
Read and understand all instructions before
performing any maintenance to this unit.
•
Any maintenance to the device MUST be done with
power turned off.
•
Any maintenance to the device MUST be performed
by a trained electrician in accordance with NEC
Guidelines and local codes.
•
Never alter the unit in any manner. Safety in
hazardous locations may be endangered if additional
openings or alterations are made in units specifi-
cally designed for use in these locations.
•
The nameplate, which may contain cautionary or
other information of importance to maintenance
personnel, should not be obscured if exterior of
housings used in hazardous locations are painted.
Failure to follow all safety precautions and instructions may
result in property damage, serious injury, or death to you or
others.
Do not attempt to repair or modify this equipment. There are
no user serviceable components inside. The Federal Signal factory
will service your equipment or assist you with technical problems
that cannot be handled satisfactorily and promptly locally.
All maintenance, service, or repairs MUST BE performed by
the factory in order to ensure continued compliance with Part 68 of
the FCC rules.
If it becomes necessary to return a unit to Federal Signal for
adjustment or repair, it can be accepted only if authorized in
advance. Request for authorization should clearly indicate the
service requested and give all pertinent information regarding the
nature of malfunction and, if possible, its cause.
Communications and shipments should be addressed to:
Service Department
Signal Division
Federal Signal Corporation
2645 Federal Signal Drive
University Park, IL 60466
708-534-3400
-3-
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